Hi All. I'm wondering if anyone has these symptoms and what it is. I've had a 3 week course of prednisone steroids and 5 days of antibiotics. Now finished and feeling flue like and lethargic. Just want to sleep. Had a constant cough night and day which seems to have eased but still feel terrible. Is it withdrawal from steroids? Just no energy ad if I've just had flu. These lungs are wearing me down.